* {
    margin: 0;
    padding: 0;
}

ul {
    list-style: none;
}

/* 控制其显示和隐藏 */
.show {
    display: block !important;
}
.one {
    padding-left:150px;
    padding-top:60px;
    width:450px;
    height:90px;

}
.header {
    overflow: hidden;
    height: 25px;
    width: 800px;
    height: 25px;
    line-height: 25px;
    padding-bottom: 40px;
    padding-left:580px;
    margin:-55px 100px 0 auto;

}

.header-tab {
    width: 800px;
    display: flex;
    overflow: hidden;
    white-space: nowrap;
    white-space: nowrap;
    font-size: 15px;

}

.header-tab li {
    cursor: pointer;
    margin-left: 50px;
    letter-spacing:5px;
}

.wrapper {
    height: 100%;
    width: 100%;

}

/* 其子元素为隐藏状态 */
.wrapper>div {
    display: none;
}

/* 隐藏滚动条 */
.header-tab::-webkit-scrollbar {
    display: none
}

/* 添加下划线 */
.add2line {
    color: #3385ff;
    border-bottom: 1px solid #3385ff;
}
.content{
    width: 100%;
    height: calc(100vh);

}
.bgi1{
    width:100%;
    height:600px;

}
.bgi2{
    width:100%;
    height:600px;

}
.bgi3{
    width:100%;
    height:600px;

}
.bgi1 .o1{
    position:absolute;
    height:300px;
    width:400px;
    margin:100px 0 auto 570px;
    background:#00000060;

}
.bgi2 .o2{
    position:absolute;
    height:300px;
    width:400px;
    margin:100px 0 auto 570px;
    background:#00000060;

}
.bgi3 .o3{
    position:absolute;
    height:300px;
    width:400px;
    margin:100px 0 auto 570px;
    background:#00000060;

}

.o4{
    height:400px;
    width:600px;
    border:2px solid #8A8A8A;
    margin-left:460px;
    margin-top:130px;
    text-align: center;
    line-height: 10px;
    letter-spacing: 5px;
    background-color:white;
}
.o41{
    height:300px;
    width:600px;
    margin-top:50px;
    text-align: center;
    line-height: 20px;
    letter-spacing:4px;
}
.o5{
    height:400px;
    width:500px;
    border:2px solid #8A8A8A;
    margin-left:510px;
    margin-top:130px;
    text-align: center;
    line-height:10px;
    letter-spacing:5px
}
.o51 {
    height: 300px;
    width: 500px;
    margin-top: 100px;
    text-align: center;
    line-height: 30px;
    letter-spacing: 5px;
}
.admin{
    text-align:center;
    letter-spacing:5px;
    font-size:30px;
    padding-top:20px;
    color:#fff;
}
.teacher{
    text-align:center;
    letter-spacing:5px;
    font-size:30px;
    padding-top:20px;
    color:#fff;
}
.adminname{
    width:250px;
    height:30px;
    margin-top:20px;
    margin-left:70px;
}
.teacher_id{
    width:250px;
    height:30px;
    margin-top:20px;
    margin-left:70px;
}
.student_id{
    width:250px;
    height:30px;
    margin-top:20px;
    margin-left:70px;
}
.adminpwd{
    width:250px;
    height:30px;
    margin-top:20px;
    margin-left:70px;
}
.teacher_pwd{
    width:250px;
    height:30px;
    margin-top:20px;
    margin-left:70px;
}.student_pwd{
     width:250px;
     height:30px;
     margin-top:20px;
     margin-left:70px;
 }

.adminname input{
    position:absolute;
    width:220px;
    height:30px;
    border:0;
    margin-left:10px;
    border-bottom:2px solid #fff;
    padding:0 5px;
    background:#ffffff00;
    color:white;

}
.teacher_id input{
    position:absolute;
    width:220px;
    height:30px;
    border:0;
    margin-left:10px;
    border-bottom:2px solid #fff;
    padding:0 5px;
    background:#ffffff00;
    color:white;

}
.student_id input{
    position:absolute;
    width:220px;
    height:30px;
    border:0;
    margin-left:10px;
    border-bottom:2px solid #fff;
    padding:0 5px;
    background:#ffffff00;
    color:white;

}
.teacher_pwd input{
    position:absolute;
    width:220px;
    height:30px;
    border:0;
    border-bottom:2px solid #fff;
    padding:0 5px;
    margin-left:10px;
    background:#ffffff00;
    color:#fff;

}
.student_pwd input{
    position:absolute;
    width:220px;
    height:30px;
    border:0;
    border-bottom:2px solid #fff;
    padding:0 5px;
    margin-left:10px;
    background:#ffffff00;
    color:#fff;

}
.adminpwd p{
    margin-left: 60px;
    border-top: 20px;
    color: white;
}
.teacher_pwd p{
    margin-left: 60px;
    border-top: 20px;
    color: white;
}
.student_pwd p{
    margin-left: 60px;
    border-top: 20px;
    color: white;
}
.bgi1 .o1 .but{
    width:150px;
    height:30px;
    margin-top:40px;
    margin-left:122px;
    letter-spacing:5px;
    font-size:18px;
    border-radius:15px;
    color:#fff;
    background-image: linear-gradient(to right,#ff867a 0%,#b12a5b 100%);
}
.bgi2 .o2 .but{
    width:150px;
    height:30px;
    margin-top:40px;
    margin-left:122px;
    letter-spacing:5px;
    font-size:18px;
    border-radius:15px;
    color:#fff;
    background-image: linear-gradient(to right,#ff867a 0%,#b12a5b 100%);
}
.bgi3 .o3 .but{
    width:150px;
    height:30px;
    margin-top:40px;
    margin-left:122px;
    letter-spacing:5px;
    font-size:18px;
    border-radius:15px;
    color:#fff;
    background-image: linear-gradient(to right,#ff867a 0%,#b12a5b 100%);
}
.contentMap{
    width: 680px;
    height: 400px;
    float: right;
}
.lun{
    position: relative;
    width: 700px;
    height: 400px;
    top: 40px;
    right: 20px;
    scrolling: no;
}
.introduce{
    width: 800px;
    height: 600px;
    position: relative;
    float: left;
    left: 20px;
    top:40px;
    letter-spacing: 10px;
}
.introduce>p{
    position: relative;
    top: 20px;
}
.introduce2{
    position: relative;
    top:50px;
}
.introduceMap{
    position: relative;
    top: 70px;
}
.introduce>h4{
    position: relative;
    top: 60px;
}